Federal parole in the United States is a system that is implemented by the United States Parole Commission. Persons eligible for federal parole include persons convicted under civilian federal law of offenses which were committed on or before November 1, 1987, persons convicted under District of Columbia law for offenses committed before August 5, 2000, "transfer treaty" inmates, persons who violated military law who are in federal civilian prisons, and persons who are defendants in state cases and who are under the U.S. Marshals Service Witness Protection Program.